FEAT(tekton): add Tekton CI/CD platform

- Tekton Pipeline for container builds
- Tekton Triggers for webhook events
- Tekton Dashboard at tekton0213.kro.kr
- Namespace patched to privileged for buildah

tekton/pipeline/argocd.yaml

@@ -0,0 +1,44 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: tekton-pipeline
+  namespace: argocd
+  finalizers:
+  - resources-finalizer.argocd.argoproj.io
+spec:
+  project: default
+  source:
+    repoURL: https://github.com/K3S-HOME/platform.git
+    targetRevision: main
+    path: tekton/pipeline
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: tekton-pipelines
+  ignoreDifferences:
+  - group: apiextensions.k8s.io
+    kind: CustomResourceDefinition
+    jsonPointers:
+    - /status
+    - /spec/preserveUnknownFields
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+      allowEmpty: false
+    syncOptions:
+    - CreateNamespace=true
+    - PrunePropagationPolicy=foreground
+    - PruneLast=true
+    - RespectIgnoreDifferences=true
+    - Replace=true
+    retry:
+      limit: 5
+      backoff:
+        duration: 5s
+        factor: 2
+        maxDuration: 3m
+    managedNamespaceMetadata:
+      labels:
+        pod-security.kubernetes.io/enforce: privileged
+        pod-security.kubernetes.io/warn: privileged
+  revisionHistoryLimit: 10